/Engine/Plugins/Runtime/Metasound/Source/MetasoundStandardNodes/Public/MetasoundScaleEnums.h
Any desired additions to this Enum/list need to first be added to the EMusicalScale enum in MidiNoteQuantizer.h and defined in MidiNoteQuantizer.cpp in the TMapScaleDegreeSetMap static init
typedef [Metasound::TEnum](API\Plugins\MetasoundFrontend\TEnum)< [Audio::EMusicalScale::Scale](API\Runtime\SignalProcessing\DSP\Audio__EMusicalScale__Scale), Audio::EMusicalScale::Scale::Major > FEnumEMusicalScale